Concessão da patente
#16.1
12/26/1984
RPI 740
Progress at the INPI
- Filing02/12/81
- Publication09/21/82
- Examination06/21/83
- Allowance03/13/84
- Grant12/26/84
- Expired12/07/93
The letters patent expired on 12/07/1993: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.
Talk to a specialistLatest action published by the INPI: 12/26/1984. We update with every new RPI gazette, published weekly.
Applicants and inventors
Applicants
METALURGICA BIASIA IND & COM L [BR]
Inventors
B. D. (pessoa física)
Technical data
IPC Classification
Prosecution history
Publications in the Brazilian Industrial Property Gazette (RPI).
Notificação para pagamento de retribuição
#13.1
07/03/1984
RPI 715
Deferimento
#9.1
03/13/1984
RPI 699
Solicitação de exame técnico
#4.1
06/21/1983
RPI 661
Publicação do pedido de patente
#3.1
09/21/1982
RPI 622
Carta-patente expirada
#21.1
12/07/1993
RPI 1201
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